A vulnerability has been identified in Desigo CC ClickOnce Client V6 (All versions), Desigo CC ClickOnce Client V7 (All versions), Desigo CC family V8 (All versions), Desigo CC family V9 (All versions), Desigo CC Flex Client V6 (All versions), Desigo CC Flex Client V7 (All versions), Desigo CC Installed Client V6 (All versions), Desigo CC Installed Client V7 (All versions). The affected application is vulnerable to Client Code Execution (CCE) due to insufficient input validation when handling scripts embedded within user-defined graphics documents. Specifically, when the script within a graphics document is designed or modified by an attacker to include malicious commands. When a user opens a compromised graphics document, the embedded script is executed on the client application instance, allowing an attacker to write arbitrary files to the client's operating system. Successful exploitation requires an attacker to craft a malicious graphics document and entice a user with sufficient privileges to display it. This could lead to compromise of the client operating system and potential lateral movement within the organization.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00132.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Siemens Desigo CC ClickOnce Client V6 unknown
Version Status Constraints
0 affected < *
Siemens Desigo CC ClickOnce Client V7 unknown
Version Status Constraints
0 affected < *
Siemens Desigo CC family V8 unknown
Version Status Constraints
0 unaffected < *
Siemens Desigo CC family V9 unknown
Version Status Constraints
0 unaffected < *
Siemens Desigo CC Flex Client V6 unknown
Version Status Constraints
0 unaffected < *
Siemens Desigo CC Flex Client V7 unknown
Version Status Constraints
0 unaffected < *
Siemens Desigo CC Installed Client V6 unknown
Version Status Constraints
0 affected < *
Siemens Desigo CC Installed Client V7 unknown
Version Status Constraints
0 affected < *

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert-portal.siemens.com/productcert/html/ssa-330084.html cve-icon cve-icon
History

Tue, 08 Sep 2026 09:45:00 +0000

Type Values Removed Values Added
Title Desigo CC Client Code Execution via Malicious Graphics Document Scripts

Tue, 08 Sep 2026 08:30:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in Desigo CC ClickOnce Client V6 (All versions), Desigo CC ClickOnce Client V7 (All versions), Desigo CC family V8 (All versions), Desigo CC family V9 (All versions), Desigo CC Flex Client V6 (All versions), Desigo CC Flex Client V7 (All versions), Desigo CC Installed Client V6 (All versions), Desigo CC Installed Client V7 (All versions). The affected application is vulnerable to Client Code Execution (CCE) due to insufficient input validation when handling scripts embedded within user-defined graphics documents. Specifically, when the script within a graphics document is designed or modified by an attacker to include malicious commands. When a user opens a compromised graphics document, the embedded script is executed on the client application instance, allowing an attacker to write arbitrary files to the client's operating system. Successful exploitation requires an attacker to craft a malicious graphics document and entice a user with sufficient privileges to display it. This could lead to compromise of the client operating system and potential lateral movement within the organization.
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: siemens

Published:

Updated: 2026-09-08T08:11:17.139Z

Reserved: 2026-03-26T16:03:07.476Z

Link: CVE-2026-34223

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-09-08T09:18:00.373

Modified: 2026-09-08T18:41:55.127

Link: CVE-2026-34223

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T09:30:07Z

Weaknesses